Mid 18th century; earliest use found in Lewis Theobald (d. 1744), literary editor and writer. From French n'importe from ne not + importe, 3rd person singular of importer.
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。